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js實現倒計時

cond timer col htm parse pan pos 分鐘 bubuko

    //倒計時8分鐘
    var getTime=sessionStorage.getItem("zicetime");
    var intDiff = parseInt(getTime * 60);//倒計時總秒數量
    function timer(intDiff){
        window.setInterval(function(){
        var day=0,
            hour=0,
            minute=0,
            second=0;//時間默認值        
        if(intDiff > 0){
            day 
= Math.floor(intDiff / (60 * 60 * 24)); hour = Math.floor(intDiff / (60 * 60)) - (day * 24); minute = Math.floor(intDiff / 60) - (day * 24 * 60) - (hour * 60); second = Math.floor(intDiff) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60); } if (minute <= 9) minute = ‘0‘ + minute;
if (second <= 9) second = ‘0‘ + second; // $(‘#day_show‘).html(day+"天"); $(‘#hour_show‘).html(‘<s id="h"></s>‘+hour+‘時‘); $(‘#minute_show‘).html(‘<s></s>‘+minute+‘分‘); $(‘#second_show‘).html(‘<s></s>‘+second+‘秒‘); intDiff--;
// if(intDiff==50){ // alert(123) // } }, 1000); } $(function(){ timer(intDiff); });

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js實現倒計時